The central processing unit (CPU) is the computer component responsible for interpreting and executing most instructions from the computer's other hardware and software.

All types of devices use a CPU, including desktops, laptops, tablets, smartphones, and even flat-screen TVs.

Intel and AMD are the two most popular CPU manufacturers for desktops, laptops and servers, while Apple, NVIDIA and Qualcomm are major manufacturers of CPUs for smartphones and tablets.

Many different names are used to describe the CPU, including processor, computer processor, microprocessor, central processor, and 'the brain of the computer'.